Electrical Wiring in the Home/Half dead box


I have a breaker box with 4 20 amp breakers. The lines to two of them are fine. The other two the breaker showed bad. I did the incoming line to the bad ones and got a very low voltage. Why?

Sounds like this is a sub panel. Find the box that feeds this panel and check that breaker. Most likely that breaker is not feeding both lines because it is tripped or bad.

If that breaker is giving off the proper voltage then you have to start looking for a bad connection.
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Electrical Wiring in the Home

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Greg Hughes


Troubleshooting electrical including appliances and HVAC.


34 years of experience.

Both college and tech schools in this field.

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